我试图让我的一个链接在点击锚点href链接时动态显示。
用于显示cats链接的JavaScript代码,但它没有显示cats链接,如下所示:
$(".button").click(function() {
$("#cat").show();
});

ul > li > #cat {
display: none;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul>
<li><a href="index.html">Dogs</a></li>
<li><a id="cat" href="javascript:void(0);">Cats</a></li>
</ul>
<p>Cool cats are stored here</p>
<a href="javascript:void(0);" class="button">Press here to enable Cats</a>
&#13;
答案 0 :(得分:0)
您需要display:hidden
作为#cat
的默认CSS,然后$("#cat").show()
才会生效。如果您希望按钮切换节目状态,请使用$("#cat").toggle()
答案 1 :(得分:0)
如果没有动态生成,您的代码应该有效,如果是这样,您应该使用事件委派on()
:
$("body").on("click", ".button", function() {
$("#cat").show();
});
注意:确保您的代码由就绪函数包装。
希望这有帮助。
$(function(){
$(".button").click(function() {
$("#cat").show();
});
});
ul > li > #cat {
display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul>
<li><a href="index.html">Dogs</a></li>
<li><a id="cat" href="javascript:void(0);">Cats</a></li>
</ul>
<p>Cool cats are stored here</p>
<a href="javascript:void(0);" class="button">Press here to enable Cats</a>
答案 2 :(得分:0)
尝试以下代码
CSS
ul > li > #cat {
display: none;
}
JQUERY
$(".button").click(function() {
$("#cat").toggle();
});
以下是工作代码:https://jsfiddle.net/u0ajrpw0/2/
答案 3 :(得分:0)
默认情况下,您可以使用$("#cat").hide();
$(document).ready(function(){}
隐藏页面加载上的链接
检查代码段。希望这有帮助
$(document).ready(function(){
$("#cat").hide();
$(".button").click(function() {
$("#cat").show();
});
});
&#13;
<ul>
<li><a href="index.html">Dogs</a></li>
<li><a id="cat" href="javascript:void(0);">Cats</a></li>
</ul>
<p>Cool cats are stored here</p>
<a href="javascript:void(0);" class="button">Press here to enable Cats</a>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
&#13;
答案 4 :(得分:0)
在codepen中给出一个快速演示,下面的代码(和codepen示例)将是我设置你想要做的事情。
HTML:
<ul>
<li>
<a href="dogs.html">
Dogs
</a>
</li>
<!-- you want to hide the LI, because if you hide the <a>, then
there will be an empty <li> that you'll need to deal with in
the layout of your page / screen reader users may end up
wondering why there is an empty list item
-->
<li id="cats_item" class="display-none">
<a href="cats.html">
Cats
</a>
</li>
</ul>
<p id="reveal_message">
Reveal a link to cats via the following button:
<!--
Use a button here since you're triggering an action
on the page, and not actually linking anywhere.
-->
<button type="button" id="reveal_button">
Reveal Cats
</button>
</p>
CSS
/* this is all you need to hide any element */
.display-none {
display: none;
}
jQuery
$('#reveal_button').on('click', function () {
// reveal the LI that contains the cats link
$('#cats_item').show();
/* hide the reveal message, since cats is shown,
this no longer has any usefulness (or change the message
and action to a 'toggle' to show/hide the cat link
*/
$('#reveal_message').hide();
/*
move keyboard focus to the cats link, otherwise
keyboard users would have to traverse back up the
DOM to get to the newly revealed link
*/
$('#cats_item a').focus();
});
这是一个在按钮点击时显示cat链接的codepen: http://codepen.io/scottohara/pen/VbYyGr
答案 5 :(得分:0)
您是否在html文件中添加了jQuery Cdn?
$('#cat').hide();
或者您也可以使用此隐藏。
'void android.view.SurfaceHolder.unlockCanvasAndPost(android.graphics.Canvas)'